Ok, I don't usually comment on things but for all you getting angry in the comments cause the main character is an asshole playboy let me ask you this, did you see the tags "harem, ecchi, smut, psychological, sexual violence" and did you read the title "Sex and Dungeon" cause if so why are you complaining, if you couldn't deduce that this was one step away from some hentai doujin and not something you would like from that and the first couple chapters, then its your own fault, and if you could deduce that, then why are you still reading if you don't like it?
And if your saying "to see the mc get justice served" or something dumb like that, cool, you hope for that good for you, stop commenting tho, and I am doubtful that this will go anywhere but just more girls to fuck and raise his lvl with but that isekai tag might be there for a reason who knows.